Table



Get. 23, 1928.

C. KUEHN TABLE 3 Sheets-Sheet 1 Filed June 24, 1926 Patented Get. 23, 1928.

entree STATES.

insane PA'rs'r tries.

CHRISTIAN KUEHN, OF ST. LOUIS, MISSOURI.

TABLE.

Application filed June 24, 1926.

ly interconnected so that the operation of one section simultaneously actuates the other section and the extension leaves are contained in said table and are auton'iatically movable into and out of position with'respcct to said top sections.

Further objects of the invention are to provide an extension table wherein the extension table leaves are arranged in superimposed relation in said table, and to provide means operating with said table for automatically raising and lowering said extension leaves in correlation with the positioning of the extension sections of said table.

Other objects of the invention are to provide simple and easily operable means for operatively interconnecting the two extensible top sections of the table whereby the operative movement of one of the sections automatically operates the other section.

Still other objects of the invention are to provide simple mechanism for automatically moving the stacked extension leaves in a vertical plane so that when said table extensions occupy closed position, said leaves are dis posed underneath, and when said table sec tions are .xtendcd said leaves are moved upwardly with the lowermost leaf occupying. a position in horizontal plane with said sections.

Additional objects of the invention are to simplify the construction of the table of the class described and provide simple and ellicient means for cooperatively interengaging the extensible top sections and for moving the stacked extension leaves in and out of position automatically with the movement of said extensible sections.

\Vith these and other objects in view, my invention consists in certain novel features of construction and arrangement of parts, hereinafter more fully desc ibed and claimed, and illustrated in the accon'ipanying drawings, in which- Figure 1 is a side elevational view of my improved table.

Figure 2 is a top plan view showing the top thereof in extended position and the leaves in stacked relation.

Figure 3 is a cross sectional view taken on line 3-3 of Figin'e 2 and. showing one'of the leaves placed in position.

between said sections.

Serial No. 118,242.

Figure 4 is a detail view taken on lines 4-4 of Figure 2.

Figure 5 is a horizontal section looking against the underside of the table.

Figure 6 is a vertical cross section taken on line 6-45 of Figure 5.

Figure 7 is a vertical longitudinal cross section taken on line 7-7 of Figure 5.

Figure 8 is a longitudinal cross section taken on line 8--8 of Figure 5.

Figure 9 is a fragmental cross section taken through the top of the table and showing the extension leaves disposed underneath the closed top sections.

Figure 10 is a vertical detail cross section taken transversely through the l extension leaves actuating mechanism.

liigure 11 is a horizontal detail cross section taken through one corner of the table support.

Figure 12 is a detail view of the extensible hinge connection of the extension leaves.

Referring by numerals to the accompanying drawings, 10 indicates the legs of a table, 11 the support frame, and 12 the top having a depending skirt 14. Top 12 consists of two extensible sections 12 and 12 which are mounted for movement in horizontal plane in frame 11. A series of extension leaves 15 are disposed in superimposed relation and traverse suitable recesses 16 formed in supports 11, while skirts 14L terminate short of said leaves as indicated at 1 1 Normally or when sections 12 and 12 are closed, leaves 15 occupy positons with the uppermost leaf immediately below the top sections 12 and 12 as shown in Figure 1.

When extensible sections 12 and 12 are moved in extended positions, leaves 15 are automatically moved upwardly into position matically actuating said leaves are disposed within the rectangular frame or support 11 and comprise horizontally disposed sliding bars 16 and 17, respectively, each of which is secured at one of its ends to the corresponding transverse wall or skirt portion 1% as indicated at 18. These bars 16 and 17 are offset with respect to each other and engage the op posite sides of a stationary bar 18, the ends of which are secured to the corresponding end boards 19 as indicated at 20 and the intermediateportion of each stationary bar 18 is seecured to a centrally disposed board 21, as indicated at 22. Said boards 19 and 21 extend transversely of the table and the line of movement of the extensible sections thereof, and

The means for autosaid boards are secured at their ends to rectangular frame 11 as indicated at 2 1. Each stationary bar 18 is provided on each side with horizontally disposed laterally projecting flange 25 and the corresponding side of each sliding guide or bar 16 and 17 is provided with a horizontally disposed groove for receiving the flange of the respective stationary bar, thus forming guides for n'iaintainin g the top sections in proper alignment with each other and with the supporting frame and at the same time said top sections are locked against displacen'ient by the interengagement of the flanges or tongues with said grooves.

The two top sections are operatively interconnected so as to effect simultaneous operation of both sections in unison with each other. This operative connection comprises lazy tong mechanism 26 consisting of a series of jointed bars27, the central bars of which are pivotally supported on the central board 21 by a pivot pin 28. Each end of said mechanism 26 is pivotallv connected as at 29 to a bracket 30, which latter is secured to the underside of the corresponding top section and extends a suitable distance downwardly therefrom so as to bring the pivotal connections 28 and 29 in horizontal plane with each other. Thus when one of the top sections is moved away from the transverse center line of the table, the opposite section will he moved a corresponding distance by virtue of the lazy tongmechanism 26.

The extension leaves 15 are disposed transversely of the table and substantially on a center with the meeting edges of sections 12 and 12 when the latter are closed, as shown in Figure 7. The two upper leaves are loosely arranged on the third or lowermost leaf and can be moved on each side of said third leaf. The latter has fastened to its underside and near each end thereof a transversely disposed bar 31 which is slidably positioned by a corresponding sliding bar 16 and a stationary guide 32 which is fastened at one end to one of the end boards 1.9 as at 34L and at the opposite end to the central board 21 as indicated at 35. Bars 31 are provided with inc-lined portions 36, the portions of the respective bars being inclined in opposite di rcctions and disposed in the pockets formed in said inclinedportions are rollers 37 which are adapted to ride on the upwardly presented inclined faces 38 of wedge members 39, the latter being fixed to the free ends of sliding bars 16 in opposed relation to each other. These wedge bars are preferably secured to the inner sides of bars 16 so as to present the inclined faces thereof in alignment with the downwardly presented in clined fees 36 of bars 31.

Thus when table top sections 12 and 12 are moved outwardly away from each other, wedge membeis 39. are moved inwardly toward the transverse axis of the table. In doing so, the inclined faces 38 of said wedge members are moved under the downwardly presented inclined faces 36 of bars 31, thereby causing rollers 37 to ride upon the oppositely inclined faces 38 and thus elevating the eX- tension leaves 15 which are stacked vertically on the central leaf 15". The relative distances between inclined faces 37 and 38 are such that the inner or opposed edges of top sections 12" and 1.2 are moved from each other a sufficient distance beforethe leaves 15 are actuated upwardly. The angularity of the inclined faces 36 and 38 is designed to.

correlate the upward movement of leaves 15 with the longitudinal extensible movement of sections 12 and 12" so that when the first or uppermost leaf is moved in horizontal plane with said top section, the latter occupies extended positions to provide, between the inner edges of said sections, an opening of slightly greater width than the width of said leaves.

so as to make allowance for the dowel pins used in connection therewith, and only a slight inward movement of the sections will be necessary to close in on the centrally positioned leaf.

The two upper leaves are held in position in the table by extensiblehinges 40, one end of each of which is pivotally connected to the corresponding bar 18 while the opposite end 7 is pivotally connected to a corresponding leaf. The hinge members 41 have a slot and pin connection with each other so as to permit extensible movement thereof when the leaves are moved in extended position, as shown in Figure 3. In this manner, the two upper leaves are held against displacen'ient. The lowermost leaf 15 is locked in the table by means of bars 12 secured transversely to the underside of said leaf and provided witlrcentrally converging ends 12. are detachably secured to the innersides of members 11 of support 11 and are provided with upwardly and inwardly converging inner ends 44' which overhang ends 42 and are so disposed that when leaf 15 occupies a position in horizontal plane with sections 12 and 12, said ends 12 and 44 are in contact with each other, thereby preventing any further upward movement of said leaf 15*. When it is desired to move said leaf 15*, it is necessary to first detach members 4A from po sition on pieces 11'.

Thus the extension leaves are automatically raised or lowered in cooperation with the movements of the table top sections. l/Vhen said table top sections are fully extended, the lowermost leaf occupies position in horizontal plane with said sections, the upper leaves being stacked on said lowermost leaf and designed to be moved one on each side of the lowermost leaf and in plane therewith.

The mechanism used to correlate the movements of the table top sections with the ex- Short pieces 44 tension leaves is of very simple construction, the parts thereof being made of wood mostly and said mechanism can be easily operated and will not stick or get out of order. The lazy tong mechanism used to operate the sections is of simple construction and can be manufactured at low cost.

\Vhile I have shown the preferred embodiment of my invention, it is obvious that various changes in the size, form, and construction of the various parts can be made, without departing from the spirit of my invention.

I claim:

1. In a table construction, the combination with a stationary support and table top sections movably arranged on said support, of lazy tong mechanism having a. central point of engagement with said support, a plurality of extension leaves arranged in superim posed relation in said stationary support, means operable by said table top sections and engaging the lowermost extension leave for raising and lowering said extension leaves relative to said table top sect-ions, and depending portions fixed to the undersides of said table top sections and pivotally connected to the respective ends of said mechanism for effecting simultaneous operation of both of said sections, said lazy tong mechanism being spaced from said table top section and arranged below the superimposed extension leaves.

2. In a table construction, the combination of a stationary support, movable table top sections mounted thereon, a plurality of extension leaves arranged in superimposed relation in said support, horizontally disposed slide bars fixed at one of their ends to said table top sections and movable therewith in opposite directions relative to each other, tracks inclined from the horizontal and fixed to the free ends of said slide bars and adapted to ride under the lowermost extension leaf when said table top sections are moved into extended positions, thereby raising said extension leaves in predetermined relation with the extensible movement of said table top sections and lazy tong mechanism disposed below said leaves and fixed at its center points to said stationary support and having its ends pivotally connected to the respective table sections adjacent to each side of said extension leaves.

3. In a table construction, the combination, of a stationary support, table top sections mounted on said support and movable in horizontal plane in opposed relation with each other, a lazy tong mechanism fixed to said sta tionary support and having its ends pivotally connected to the respective table sections for correlating the movements thereof, horizontally disposed stationary bars fixed to said support and extending longitudinally of the line of movement of said table top sections, sliding bars fixed to said sections and disposed adjacent to said stationary bars and having tongue and groove engagement therewith, a purality of extension leaves arranged in superimposed relation in said support and normally occupying position below the plane of said table top sections, and oppositely ineiined blocks fixed to the free ends of said sliding bar operable thereby and cooperating with the underside of the lowermost extension leaf for displacing said leaves in vertical plane in a definite relation with the operation of said table top sections- 4:. In a table construction, the combination of a stationary support, table top sections iounted thereon and movable into extensible positions, lazy tong mechanism pivotally and centrally secured to said stationary support and having its ends pivotally connected to said top sections for correlating the movements thereof, a plurality of extension leaves arranged in superimposed relation in said support and normally occupying positions be low the plane of said sections, and means operable by said sections for raising or lowering said extension leaves, said means including a pair of spaced side rails secured to and extending in opposite directions from the respective sections, station ary rails fixed in said support and engaging said slide rail for maintaining said top sections in proper operative alignment with each other, a block fixed to the free end of each slide rail and having a plane inclined from horizontal and in a definite relation relative to the respective top section, and a correspondingly inclined member fixed to and depending from the lowermost extension leaf and engageable by the respective block for moving said extension leaves in a vertical plane in correlation with the move ments of said table top extensions.

5. In a table construction, the combination of a stationary support including table legs, table top sections mounted thereon and movable relatively to said support and said legs, a lazy tong mechanism centrally secured on said support and having its ends pivotally connected to the respective sections for correlating the movements thereof, a horizontally disposed stationary bar fixed to said support near each side thereof, a slide bar arranged contiguous to one side of each stationary bar and fixed at one end to one of the table sections and extending under the opposite table top section, an inclined block fixed to the free end of each slide bar and having its inclined plane sloping towards the meeting edges of said top sections, a plurality of extension leaves arranged in superimposed relation in said support above said bars and said lazy tong mechanism, and means fixed to the underside of the lowermost extension leaf and engageable by the respective inclined blocks for automatically raising and lowering said extension leaves in correlation with the movements of said table top sections.

6. In a tahleconstruction,the combination of a stationary support including table legs fixed thereto, table top sections mounted thereon and movable relatively to said support and said legs, a lazy tong mechanism centrally secured on said support and having its ends pivotally connected to the respective sections for correlating the movements thereof, a horizontally disposed stationary bar fixed to said support near each side thereof, a slide bar arranged contiguous to one side of each stationary bar and fixed at one end to one of the table sections and extending under the opposite table top section, an inclined block fixed to the free end of each slide bar and having its inclined plane sloping towards the meeting edges of said top sections, a plurality of exengageable by the respective inclined blocks 7 for automatically raising and lowering said extension leaves in correlation Withthe move ments of said table top sections, and extensible double hinged connections pivotally'connected to one side of each laterally movable 7 extension leaf and to the corresponding stationary bar for permitting positioning of such extension leaves to each side of the lowermost extension leaf.

In testimony whereof I hereunto affix my signature this 19th day of June, 1926.

CHRISTIAN KUEHN. 

